鸿

远方来鸿

yuǎn fāng lái hóng

letter from afar (literary)

那鸿书

nà hóng shū

Book of Nahum

雪泥鸿爪

xuě ní hóng zhǎo

a goose's footprint in the snow

飞鸿

fēi hóng

swan goose

飞鸿踏雪

fēi hóng tà xuě

see 雪泥鴻爪|雪泥鸿爪[xue3 ni2 hong2 zhao3]

飞鸿雪爪

fēi hóng xuě zhǎo

see 雪泥鴻爪|雪泥鸿爪[xue3 ni2 hong2 zhao3]

惊鸿

jīng hóng

graceful (esp. of female posture)

鸿喜菇

hóng xǐ gū

beech mushroom (Hypsizygus tessulatus), usually referring to the brown cultivated variety

鸿图

hóng tú

variant of 宏圖|宏图[hong2 tu2]

鸿图大计

hóng tú dà jì

important large scale project

鸿毛泰山

hóng máo tài shān

lit. light as a goose feather, heavy as Mt Tai (idiom)

鸿毛泰岱

hóng máo tài dài

light as a goose feather, heavy as Mt Tai (idiom); of no consequence to one person, a matter of life or death to another